Message the seller :
Can fix or upgrade, hmu and lets see what you have in mind. Im not expensive and im vary good at car audio. I try to get the most out off every sub amp and box that i can. 20 years and running, some subs like ported, sealed. Dif sizes. The specs on subs aren't always right. You can make any sub sound good in the right box, and have a good amp with a good signal to it. Let hear what you want and ill give ya a guesstimate on it. Thanks for reading and sorry so long.